I have done searches on Google for a while now. It appears that I can hold up the earrings with clear thread or fishing line. But how would I get them out in Photoshop if that is the case? Also, how does she position the earrings so that they are symmetrical? Thanks in advance for your help with this.

To me, it looks like she took a picture placed them down on a surface and photoshoped the background out.

If you want it to be symmetrical, try taking separate images of each earring at the same distance and position them symmetrically in photoshop after you've taken out the background. Another is to take a picture of both earrings and just doing the exact same thing.

I think... if you got some of that 'fishing line' (you can buy it in a craft store, it's for necklaces.) and tack it up on a white wall, or a piece of psoter board.. and if you can get the lighting just right (say, tilt aforementioned board to the sun around 2 in the afternoon... or get some good fluorescent lights or something) and.. that should work. Long story short, fishing line to hang the jewelry from, a good solid white background, and great light. Hope that helps

This site shows you how to make your own light tent to get the lighting correct. You can try the fishing line idea with it, or just lay them flat, but it should help you get the more professional background look & lighting.

To get rid of the background you just need to take a picture on white paper, open it up in photoshop, "ctrl" + "L" to get the levels adjustment open, click the white eyedropper, click where it is supposed to be white, and if there are other spots that dont work-just use the eraser.

Usually I would just edit one earring and then copy, paste and reverse it to have a matching pair.